1. The typical catholic conflation is in play, conflating their institutional relion with the True Church Jesus established as the collected body of believers, regardless of 'denominational vagaries' ... councils of believer from various cities with growing numbers of believers hashed over doctrines and dogmas, seeking consensus, proving the dogmas and doctrines do not save, do not cause the born from above identity which Jesus identified to Nicodemus.
2. God has in fact 'left a Bible' ... Jesus quoted from The Scriptures/The Septuagint and instructed Saul of Tarsus to write many things for instructing believers; thus it is by God's command that Paul wrote his letters of instruction and these became part of The Bible of God ordained instructions, just as Peter, Jude, James, John and the four authors of the synoptic gospels were doing what God ordained to add to The Scriptures brought forth to Jesus's time.
3. Christians, as a hallmark of ekklesia, hold the belief that God in fact 'left' a Bible for their instruction, as testified by The Bible that scriptures are to be an instructor of the brethren, and that assertion from more than one of the New Testament authors. God has in fact left The Church for our edification and growth. Jesus established a SPIRITUAL body of believers whom He identified as His Ekklesia, founded upon the profession of Whom He is. This Ekklesia is formed from Jews (see the Day of Pentecost preaching by Peter) and Gentiles (see the preaching by Peter in The House of Cornelius). This CHURCH/ EKKLESIA is not an institution, it is a body of souls united in the state of having been born from above by the Grace of God in Christ, not some rituals, rites, and alimentary consumption.
A human borders on blasphemy when they contradict Jesus in order to promote the institution of another gospel such as catholiciism is.
Your post is utter nonsense. The fact us the Bible was not dropped by a stork it was written after Christ’s death by members of his Church and compiled by them That Church still exists. The you don’t want to agree with that is your problem.